Liquid crystal display method and liquid crystal display device

Abstract

The invention discloses a liquid crystal display method and device. The liquid crystal display method comprises the steps that ultraviolet light or near ultraviolet blue light is adopted to generate backlight; a first polarizing film is utilized, so that polarized light, in the first polarization direction, in the backlight penetrates through the first polarizing film; control voltage is applied to a liquid crystal layer, so that the polarization direction of the polarized light in the first polarization direction is made to deflect; a second polarizing film is utilized, so that the polarized light, in the second polarization direction, of the polarized light with the deflected polarization direction penetrates through the second polarizing film in a component mode; the polarized light which is in the second polarization direction and penetrates through the second polarizing film is utilized for bombing a fluorescent screen, and the fluorescent screen generates visible light for watching by a watcher. As the ultraviolet light or near ultraviolet blue light has relatively narrower wavelength range compared with white light, optical devices in the liquid crystal display device can represent good optical coherence.

Description

technical field [0001] The present invention relates to the technical field of liquid crystal display, and more particularly relates to a liquid crystal display method and a liquid crystal display device. Background technique [0002] Compared with traditional CRT display devices, liquid crystal display devices have a revolutionary advantage in volume. However, on the other hand, the color display performance of existing liquid crystal display devices is not as good as that of traditional CRT display devices. [0003] Traditional CRT display devices emit light by bombarding phosphors with electron beams. This is a self-illuminating display technology, which has the advantages of large color gamut, large viewing angle, and small color shift under large viewing angles. These advantages of traditional CRT display devices just become the shortcomings of existing liquid crystal display devices. [0004] For existing liquid crystal display devices, white light LEDs are mostly us...

AI Technical Summary

Problems solved by technology

Therefore, the existing liquid crystal display devices have some inconsistencies when displaying light of different wavelengths (correspondingly, light of different colors)

On the other hand, existing liquid crystal display devices use color filters to achieve color display, which reduces the utilization rate of light energy, resulting in poor light emission performance and serious color shift of liquid crystal display devices.

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